Titanium Powder Preparation from TiCl4 in the Molten Salt

Two processes are proposed to produce Ti powder directly from TiCl4 gas using molten magnesium as reductant. TiCl4 gas injection into a liquid Mg layer through the molten chloride salts could produce the Ti powder of 1 to 10 μm in diameter. Neither the operation temperature nor the salt composition affected the powder morphology. When TiCl4 was dissolved once in the molten salt as Ti2+, and when Mg successively reduced this Ti2+, the Ti morphology varied from the needle-like to the round shape by raising the reduction temperature

ALLOY5 A~D COMPOUNDS ELSEVIER Electrochemical deoxidation of yttrium-oxygen solid solutions

Abstract Oxygen was removed from yttrium by an electrochemical method in which the metal is made the cathode in a cell consisting of a carbon anode and molten CaCI 2 electrolyte. At 1223 K yttrium containing 5700 ppm oxygen was deoxidized down to less than 100 ppm. The method can be used to deoxidize other highly reactive metals. Furthermore, in principle it should be possible to remove other impurities besides oxygen